Vertical steam-generator furnace



Apr. 3, 1923,

1,450,489 H. CRUSE VERTICAL STEAM GENERATOR FURNACE Filed Feb 27, 1922 Patented Apr. 3, 1923.

UNITED S'I'TS HENRY CRUSE, OF HYDE, ENGLAND.

VERTICAL STI-JAll/L-GENERATORv FURNACE.

Application filed February 27 1922. Serial No. 539,499.

To all whom it may concern:-

- Be it-known that I, HENRY Cnnsn, a subject of the King of Great Britain and Ireland, and resident of Hyde, in the county of Chester, England, have invented certain Improvements in Vertical Steam-Generator Furnaces, of which the following is a specification.

This invention relates to improvements in vertical steam generators, the object being to combine therewith a portable furnace which can be moved into position below the lower end of the boiler and be moved away therefrom as desired such furnace being adapted for burning either solid, pulverized or liquid fuel.

My invention will be fully described with reference to the accompanying drawings in which,

Fig. l, is a sectional side elevation of the lower portion of a vertical boiler showing the application of my invention thereto and indicating the portable furnace in working position,

Fig. 2, plan of the furnace.

With the aforesaid object in view I arrange to support the boiler shell a on columns I), usually four, such columns being adapted to support the shell at a sufiicient distance from the base or floor o to allow of a portable furnace being moved into and out of the working position. The lower ends of the columns rest directly upon the base or floor 0 or upon a subsidiary base d embedded in the floor, such base being of a continuous character or made in sections as is most convenient. The upper ends of the columns are conveniently secured to brackets 6 connected to the boiler shell a. The lower end of the boiler shell is provided with a combustion chamber f of any convenient type open at its lower end so as to communicate with the portable furnace, such lower end having secured to it a deadplate g of convenient construction and usually constituted by a metal angle ring which supports a lining h of refractory material designed to protect the combustion chamber at its lower end.

The portable furnace is composed of a suitable constructed casing i usually of circular shape to conform to that of the boiler shell a and combustion chamber f, such casing being mounted preferably on wheels or rollers y to enable it to be moved freely nto and out of position with relation to the boiler. The rear lower end of the boiler shell a is provided with a downwardly-pro- ]ecting flange orplate 74 of semi-circular character whilst the front portion of the furnace is provided with a similar shaped upwardly extending fiangeor plate on, the ends of both plates fitting together when the furnace is in working position so as to make comparatively tight joints. The inner faces of the two plates also make a reasonably tight joint with the periphery of the boiler shell. If necessary the aforesaid inner faces may be lined with asbestos or similar packing if required. The plate 9 is riveted to the boiler shell on, and the plate m is riveted to the furnace casing 2'. These plates serve as stops for positioning the furnace when slid under the boiler, but they may be dispensed with altogether, or any other approved stops may be used.

When used for solid fuel firing, the fur nace casingz' is arranged to support carriers n of suitable shape upon which fire bars 0 of any suitable construction are placed, the arrangement allowing of the fire bars being replaced when required. I do not confine myself to any particular form of fire bar design. Below the carriers and fire bars I arrange a closed ashpit 20 preferably formed by a circular flat or dished plate Q which may be adapted to either be permanently fixed in position or to be capable of ready removal when required. The plate is supported in position by an angle ring 7- or by separate brackets secured to the casing of the furnace.

Fuel is fed to the furnace through one or more doors 8, preferably a pair of doors hinged at If either directly to the casing of the furnace or to a furnace mouth u extending from the casingand conveniently secured to it. to the ashpit p. The inside of the furnace above the fire bars, as well as the upper portion of the furnace mouth may be lined with refractory material w to resist the heat of the furnace and so protect its casing.

Located at suitable points in the furnace casing and in the furnace door if required are adjustable grids m for controlling the amount of air passing into the furnace. Similar air grids y are also employed in connection with the ashpit.

What I claim is:

The combination, with a foundation; a boiler shell, a vertical firebox open at the bottom and having its lower end secured to One or more ash doors v give access the lower portion of the boiler shell, said firebox being provided With a smoke outlet at its upper part, an annular dead plate secured to the boiler shell below the firebox joint, and refractory material supported by the dead plate and protecting the firebox joint; of means for supporting the boiler shell and firebox above the foundation; and a portable furnace open at the top and adapted to he slid upon the foundation under the boiler shell, said furnace bein pro vided with means for admitting fuel and air to support combustion, and having a ring of refractory material at its upper part arranged to come directly under the said annular dead plate When the furnace is in its Working position.

In testimony whereof I have hereunto set my hand. 1 I

HENRY CRUSE. 

